Countertop water purification unit



FIG. 1 is a front elevational view of a countertop water purificationunit according to my design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left elevational view thereof;

FIG. 5 is a right elevational view thereof; and,

FIG. 6 is a bottom plan view thereof.

The ornamental design for a countertop water purification unit, as shownand described.